Milking-machine.



A. H. LOQVIST. MILKING MACHINE. APPLICATION FILED 0013.28, 1910.

Patented July 11, 1911.

3 SEEETSSHEET 1.

a W Z m m E N H, mw

. wit ,2 as e s A. H. LOQVIST.

MILKING MACHINE.

APPLICATION FILED 0013.28, 1910.

Patented July 11, 1911.

3 SHEETS-SHEET 2.

A H. LO QVIST. MILKING MACHINE.

APPLIOATIOHVIILBD 0013.28, 1910.

Patented July 11, 1911.

3 SHEETS-SHEET 3.

witnesses Inventor UN TED STATES PATENT OFFICE.

AUGUST HJ'ALMAB. LOQVIST, OF ESKIL STUNA, SWEDEN.

mmune-mourns.

To all whom it may concern!- Be it known that I, AUGUST HJALMAR Loovls'r, a subject of the King of Sweden, residing at Eskilstuna, in the Kingdom of Sweden, have invented new and useful Improvements in Milking-Machines, of which the following is a specification, reference be- .ing had to the drawings accompanying and forming a part hereof.

This invention relates to milking machines of the kind in which the compressin members are supported by rods or the li e connected to thedriving device. In milking machines of this kind hitherto known the rod or the like carrying the stationary compressing members was placed below the rodsor the like carrying the movable compressing One object of the invention 1s to remove the said drawback and provide a milking machine which is rigid and reliablein Workmg.

inafter appear.

The invention consists, chiefly, in that the rod or the like carrying the stationary compressing members has the part thereof next to the said members placed between the rods carrying the movable compressing members and, preferably, halfway between the said roos, so that the suroorting points for the stationary compressing members will be placed at the middle of the same, whereby the said members will be entirely balanced for the pressure from within so that they will have no tendency to yield at any of their edges.

The invention further comprises means for adjusting the stationary compressing members in such a manner that the said adustment will take place easily and rapidly and with great accuracy. To this end the member by'which the rod is adjusted is movable at an angle to the rod so that the rod may beoperated from the side of the machine.

may be hung on the cow in such a manner Other objects of the invention will here- Specification of Letters Patent. 1 Patented July 11 1911 Application filed October 28, 1910. Serial No. 589,558. 1

7 that the machine will obtain the accurate and at the same time entirely firm position relatively to the udder which is a principal cplnd tion for a perfect-working of the inac me.

. In the'drawings, I have shown a machine embodying the invention.

' Figure 1 is a side view and Fig. 2 is a plan view of the machine. Fig. 3 is a horizontal section on line A 13 of Fig. 1. Fig. 4 is a rear view of the machine. Figs. 5 to 7 show adetail on an enlarged scale. Fig. 8 shows the supporting device during use. Fig. 9 is a side view on an enlarged scale of the device for adjusting the machine and the rod vertically relatively to each other. Fig. 10 is a rear view, partly in section, of the same device. Figs. 11 and 12 are side view and plan view, respectively, of a rod the length of which may be varied.

Referring to the drawings, the driving mechanism suit-ably consists of a camgrooved disk 2 attached to an axle 3 jour-.

naled in the casing 1 (Figs. 1 and 2). Engaging the disk 2 are sliding rollers 4 and 5 attached to the operating rods 6 and 7, respectively, which carry the movable plates 'or compressing members 8 and 9. The

plates 8 are connected to the rods 6 and 7 in such a manner that they cannot'be moved along the same, whereas the plates 9 are journaled on rods 23 connected to rods 10 or the like (Figs. 5 to .7) adjustable in positionalong the rods 6 and 7. For locking the rods 10 in position the rods 6 and 7 are provided with sleeves 11 placed round about the two rods to be connected and -formin a guide for a clamp 12 placed in the 'sai sleeve. The clamp 12 is provided at one side with a press button 15 project ing outside the sleeve 11 and is normally kept 'by a spring 13 placed in the sleeve 11 in engagement with one or the other of a series of recesses 14 in the rod 6 or 7, respectively, by which the rod 10 is secured in position. When the rods'1'0 are to beadjusted, the button 15 is pressed in so that the clamp 12 is disengaged from the recess 14, whereupon the rod 10 may be moved along the rod 6 and secured in position by releasing the button 15 so that the spring 13 is free to press the clamp 12 into another recess 14.

The rod 16 carries the stationary compressing plat-es 17 and '18. According to the invention this rod is placed between the two operatin rods 6 and 7. The plates 17 are connecte to the rod 16 in such a manner as not to be movable along the same, whereas theplates 18 are adjustable 1n position on the said rod, to which end vthey may be connected to a device similar to that described, 2'. e. to a rod or the like movable along the rod 16 and adapted to be secured thereto in the manner described with reference to Figs. 5 to 7.

Placed below the forward end of the rod 16 movable in suitable guides is a slide 19 (Fig. 3) movable in guides in the casing l, at an angle to the rod 16. Extendmg through the slide 19 is a screw 20 ournaled in the casing 1 and provided, at the end thereof projecting laterally from the casing, with a handle 21. Projecting fromthe slide 19 is an obliquely extending cam 22 engaging a corresponding groove in the rod 16. When the screw 20 1s turned, the slide 19 is moved correspondingly, and the obliquely extending cam thereby causes the rod 16 to move longitudinally.

By means of the mechanism described the milking members may be adjusted in the following manner. The plates 8 are first placed at the distance from the plates 17 corresponding to the distance between the teats in the longitudinal direction of the cow. During this operation the positions of the plates 8 and 9 remain unchanged. Thereupon the plates 9 are adjusted relatively to the plates 18. In order to thereupon regulate the pressure on the teats the plates 17 and 18 are displaced together relatively to the plates 8 and 9, which is performed by moving the rod 16 longitudinally by means of the screw 20. In order to prevent too strong a pressure on the teats, abutment pieces 33 are placed at the inner side of the casing 1, one at each end of the slide. These abutment pieces limit the movement of the slide in both di rections and thus also the movement of the rod 16.

As shown in Figs. 1 and 2, the compressing plates are placed on transverse rods 23 and 24 extending from the rods 6, 7 and 16. All these transverse rods are slitted, and the one part of each rod, which forms a spring tongue, is bent somewhat away from the other part. Placed on the said slitted rods are sleeves 25 attached to the compressing plates, said sleeves being held in posi-. tion by the spring action of the slitted rods. By this means it is made possible to easily and rapidly remove the compressing plates when the machine is to be taken into pieces for cleansing or the compressing plates are to be exchanged.

When the rear teats are directed somewhat forwardly, as is often the case, the part of the udder. just behind the teats is liable to hang down exerting a pull on the teats so that the latter will easily disengage themselves from the compressing members. In order to prevent this, the rear compressing plates 18 are suitably provided with obliquely upward and downward extending parts 26 forming a support for the said part of the udder. Such extensions may also be used at the fore plates, or at all plates, if desired.

The machine is driven by an electric motor 27 whose casing is preferably made in tegral with the casing 1. The movement may be transmitted from the motor axle 28 to the axle 3 of the cam-grooved disk through a screw and wheel or otherwise.

The milking machine is supported in usual manner by a girdle 42 (Fig. 8) placed over the croup of the cow. At its forward end the machine is provided with two lugs 43. Placed between these lugs is a plate 44 attached to the rear end of a rod 45 extending forwardly below the belly of the cow. The plate 44 with the rod 45 is adapted to turn about a bolt or pivot pin 46 inserted through the said plate and the lugs 43. In the plate 44 is a slot 47 concentric with the bolt 46 and extending through the said slot is a screw 48 screwed into one of the lugs and bearing with a flange-on the other one. By tightening the screw the plate 44 will thus be clamped between the lugs 43. The forward end of the rod 45 is inserted from behind through a clamp 49 or the like attached to a girdle 50. The rod is provided at its lower side with lugs or projections 51 placed at certain distances apart, said .lugs forming between themselves recesses adapted to receive the clamp 49. The adjustment of the machine is suitably performed by first moving the rod 45 longitudinally into a position in which the machine is in proper position below the teats. The position of the machine may thereupon be adjusted by loosening the screw 48 and turning the machine. relatively to the rod 45 so that the teats will hang freely between the compressing members of the machine. By tightening the screw 48 the machine is thereupon secured in position.

In the embodiment shown in Figs. 11 and 12, the rod consists of two parts 54, 55, movable through sleeves 56 each attached to one of the said rods. said sleeves is a spring hook 57 extending through the one part 55 and projecting into one or the other of a series of cavities 58 in the other part 54. The rod may thus be extended or shortened by causing the hook 57 to engage one or the other cavity 58. At the forward end the rod has a book 59 adapted to be placed in the clamp 49. Ohviously, the rod may consist of more than two parts movable along one another.

It appears from the aforesaid that the ad- Attached to one of the justment is easily performed and requires onlytwo simple manipulations,- viz. moving the rod longitudinall (or lengthening or shortening same) an loosening and t1 htening'the screw 48 in connection wit a small turning of the machine. The adjust. ment will be the more simple as it may be performed entirely from the side of the machine without the person performing it changing his position. I

. The milk receptacle 52 is suitably carried by a-hook 53 attached to the rod 45 (Figs. 8 and 9),. I

I claim:

'1. In a milking machine, the combination of stationary compressing members, movable compressing members, means for drivin operating rods connecting, said driving means to said movable compressing members for transmitting movement thereto, and a supporting rod attached to the stationary compressing members at points lying between the said operating rods, substantially as and for the purpose set forth.

2. In a milking machine, the combination of stationary compressing members, movable compressing members, means for drivin said latter compressing members,

operating rods connectmg' said driving ablecompressing members, means for drivdinally adjustable supporting rod attached to the stationary compressing members at points between the said operating rods, and

a part movable at an angle to the'said supporting rod and operating thereon so as to adjust the same when shifted, substantially as and for the purpose set forth.

5. In a milking machine, the combination of stationary compressing -members,- movable compressing members, means for driv-' said latter compressing members,

ing'said latter compressin V erat ng' rods connecting sea I driving means ing said latter compressing ating rods connecting sa1 driving means to said movable compressing. members for members, opertransmitting movement thereto, a longitudinally adjustable supporting rod for the stationary compressing members, and a slide' movable at an angle to thesaid supporting rod and engaging the latter in such a manner as to shift the said rodwhen moved in either direction, substantially as and for the to said movable compressing members for transmitting movement thereto, a longitudinally adjustable supporting rod for the stationary compressing members, and a slide movable atright angles to the said supporting rod and engaging the latter in such a manner as to shift the said rod when moved in either direction, substantially as and for the purpose set forth.

7'. In a milklng machine, the combination of stationary compressing members, movable compressing members, means for driv-,

ing saidlatter compressing members, operating rods connecting said driving means to said movable compressing members for transmitting movement thereto, a longitudinally adjustable support-ing rod for'the stationary compressing members, a slide movable at an angle to the said supporting rod and engaging the latter in such a mans ner as to shift the said rod when moved in either direction, and a screw engaging'the' said slide so as to move the same when turned in either direction, substantially as and for the purpose set forth.

8. In a milking machine, the combination of stationary compressing members, inov able compressing members, means for driving said latter compressing members, a casmg inclosing the said driving means, operating rods connecting said driving means to'said movable compressing members for transmitting movement thereto, a longitudinally adjustable supporting rod for the stationary compressing members, a slide movable at an angle to the said supporting rod and engaging the latter in such a manner as to shiftthesaid rod when moved in either direction, and a screw journaled in the casing for the driving means and engaging the said slide so as to move the same when turned ineither direction, said screw having a handle outside the said casing, substantially as and forthe purpose set forth.

9. In a milking machine,the combination of stationary compressing members, movable compressing members, means for drivmembers, op-

able compressing members, means for driv-- ing said latter compressing members, operating rods connecting said driving means to said movable compressing members for transmitting movement thereto, a longitudinally adjustable supporting rod for the' stationary compressing members, a slide movable at right angles to the said supporting rod and engaging the latter in such a manner as to shift the said rod when moved in either direction, and abutments placed at the ends of the said slide for limiting its movement. substantially as and for the purpose set forth. I

11. In a milking machine, the combination of stationary compressing members, movable compressing members, means for driving said latter compressing members, operating rods connecting said driving means to said movable compressing members for transmitting movement thereto, a longitudinally adjustable supporting rod for the stationary compressing members, a slide movable at an angle to the said supporting rod and engaging the latter in such a man ner as to shift the said rod when moved in either direction, a, screw engaging the said slide so as to move the same when turned in either direction, and abutments at the ends of the said slide for limiting its movement, substantially as and for the purpose set forth.

12. In a milking machine, the combination of a driving mechanism, operating rods for transmitting movement from the said driving mechanism, transverse rods extending from the said operating rods, a stationary rod, transverse rods extending from the said stationary rod, all said transverse rods being slitted and having the parts at both sides of the slit springy away from each other, and compressing members having sleeves adapted to be placed on the said transverse rods, said members being kept in position on the said rods by the spring action exerted on the same, substantially as and for the purpose set forth.

13. In a milking machine, the combination of stationary compressing members, movable compressing members, means for driving said latter compressin members, operating rods connecting sald driving means to said movable compressing members for transmitting movement thereto, and a supporting rod for the stationary compressing members, the rear compressing members being provided with obliquely upwardly and rearwardly directed extensions forming a support for the udder, substantially as and for the purpose set forth.

14. In a milking machine, the combination of stationary compressing members the rear of which are provided with obliquely upwardly and rearwardly directed extensions forming, a support for the udder, movable compressing members cooperating with the former, means for driving said latter compressing members, operating rods connecting said driving means to said movable compressing members for transmitting movement thereto, and a supporting rod for the said stationary compressing members, substantially as and for the purpose set forth.

15. In a milkin machine, the combination 'of a frame, (giving means carried by the said frame, stationary compressing members, -movable compressing members, connections between the driving means and the said movable compressing members for transmitting movement to the same, and a rod connected to the frame of the machine in such a manner as to be adjustable vertically in relation thereto, said rod extending below the belly of the cow in posit-ion to be attached to the cow at its forward end, substantially as and for the purpose set forth.

16. In a milking machine, the combination of a frame, driving means carried by the said frame, stationary compressing members, movable compressing members, connections between the driving means and the said movable compressing members for transmitting movement to the same, and a longitudinally adjustable rod extending from the frame of the machine below the belly of the cow in position to be attached as and for the purpose set forth.

17. In a milking machine, the combination of a frame, driving means carried by the said frame, stationary compressing members, movable compressing members, connections between the driving means and the said movable compressing members for transmitting movement to the same, and a longitudinally adjustable rod connected to the frame of the machine in such a manner as to be adjustable vertically in relation thereto, said rod extending below the belly of the cow in position to be attached to the cow at its forward end, substantially as and for the purpose set forth.

18. In a milking machine, the combination of a frame, driving means carried by they said frame, stationary compressing members, movable compressing members,

to the cow at its forward end, substantially connections between the driving means and the said movable compressing members for transmitting movement to the same, a rod connected to the frame of the machine in such a manner as to be adjustable vertically in relation thereto, said rod extending below the belly of the 'cow in position to be attached to the same at its forward end, and

means comprising a set screw engaging a slot concentric to the turning point of said rod for locking same in positlon, substan-.

tially as and for the purpose set forth.

19. In a milking machine, the combination of a frame, driving means carried by the said frame, stationary compressing member's, movable compressing members, connections between the driving means and the said movable compressing members for transmitting movement to the same, a rod connected to the frame of the machine in such a manner as tobe adjustable vertically in relation thereto, said rod extending below the bell .of the cow in position to be attached to t e same at its forward end, and

means for attaching the said rod to the cow at different points of the said rod.

20. In a milking machine, the combination of a frame, driving means carried by the said frame, stationary compressing members, movable compressing members, connections between the driving means and the said movable compressing members. for

transmitting movement to the same, and a l 7 allow the rod to be adjusted therein, substantially as and for the purpose set forth.

AUGUST HJALMAR LOQVIST.

Witnesses AUG. SoRENsEN, KARL RUNEsKoG. 

